Update vendor files to point to kubernetes-1.12.0-beta.1

vendor/k8s.io/api/roundtrip_test.go

@@ -52,8 +52,9 @@ import (
 	storagev1alpha1 "k8s.io/api/storage/v1alpha1"
 	storagev1beta1 "k8s.io/api/storage/v1beta1"
 
-	"k8s.io/apimachinery/pkg/api/testing/fuzzer"
-	"k8s.io/apimachinery/pkg/api/testing/roundtrip"
+	"github.com/stretchr/testify/require"
+	"k8s.io/apimachinery/pkg/api/apitesting/fuzzer"
+	"k8s.io/apimachinery/pkg/api/apitesting/roundtrip"
 	genericfuzzer "k8s.io/apimachinery/pkg/apis/meta/fuzzer"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/runtime"
@@ -100,7 +101,7 @@ func TestRoundTripExternalTypes(t *testing.T) {
 		scheme := runtime.NewScheme()
 		codecs := serializer.NewCodecFactory(scheme)
 
-		builder.AddToScheme(scheme)
+		require.NoError(t, builder.AddToScheme(scheme))
 		seed := rand.Int63()
 		// I'm only using the generic fuzzer funcs, but at some point in time we might need to
 		// switch to specialized. For now we're happy with the current serialization test.
@@ -119,7 +120,7 @@ func TestFailRoundTrip(t *testing.T) {
 		metav1.AddToGroupVersion(scheme, groupVersion)
 		return nil
 	})
-	builder.AddToScheme(scheme)
+	require.NoError(t, builder.AddToScheme(scheme))
 	seed := rand.Int63()
 	fuzzer := fuzzer.FuzzerFor(genericfuzzer.Funcs, rand.NewSource(seed), codecs)
 	tmpT := new(testing.T)